Hugin uses the same open source library used by many other software including shareware like PTMac from Kekus Digital. Hugin is, however, free and you can start making panoramic photos without buying any expensive software or equipment. Unlike many similar software, Hugin considers the shapes of the lens and can adapt to the particular distortion profile of your camera.

For advanced users, Hugin also has many features for making panoramas with special equipment, including two types of fisheye lenses and more.

Versions 0.8 was recently released and among the new features are:

Fast Preview window

Celeste sky identification

New panorama projections

Batch Processor

Online help

Languages

Other improvements

Control point generators

Hugin is free, open-source and works on Windows, Linux and Mac OS X. If you liked those images, proceed to downloading this great application: